Synnefo » Pithos MacOS Client

//

//  PithosPreferencesController.m

//  pithos-macos

//

// Copyright 2011-2012 GRNET S.A. All rights reserved.

//

// Redistribution and use in source and binary forms, with or

// without modification, are permitted provided that the following

// conditions are met:

// 

//   1. Redistributions of source code must retain the above

//      copyright notice, this list of conditions and the following

//      disclaimer.

// 

//   2. Redistributions in binary form must reproduce the above

//      copyright notice, this list of conditions and the following

//      disclaimer in the documentation and/or other materials

//      provided with the distribution.

// 

// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

// POSSIBILITY OF SUCH DAMAGE.

// 

// The views and conclusions contained in the software and

// documentation are those of the authors and should not be

// interpreted as representing official policies, either expressed

// or implied, of GRNET S.A.

#import "PithosPreferencesController.h"

#import "PithosBrowserController.h"

#import "PithosAccountNode.h"

#import "PithosSharingAccountsNode.h"

#import "PithosContainerNode.h"

#import "PithosSubdirNode.h"

#import "PithosObjectNode.h"

#import "PithosEmptyNode.h"

#import "PithosAccount.h"

#import "pithos_macosAppDelegate.h"

#import "ImageAndTextCell.h"

@interface PithosPreferencesSyncOutlineViewCell : ImageAndTextCell {}

@end

@implementation PithosPreferencesSyncOutlineViewCell

- (void)setObjectValue:(id)object {

    if ([object isKindOfClass:[PithosNode class]]) {

        PithosNode *node = (PithosNode *)object;

        [self setStringValue:node.displayName];

        [self setImage:node.icon];

        [self setEditable:NO];

    } else {

        [super setObjectValue:object];

    }

}

@end

@implementation PithosPreferencesController

@synthesize selectedPithosAccount;

@synthesize accountsArrayController;

@synthesize accountRemoveEnable;

@synthesize serverURL, authUser, authToken, manual, loginEnable, loginCancelEnable;

@synthesize syncActive, syncDirectoryPath, syncAccountsDictionary, syncApplyEnable, syncCancelEnable, 

            syncAccountsOutlineView, syncAccountsRootFilesNodes;

@synthesize groupsDictionaryController, selectedGroupMembersDictionaryController;

#pragma mark -

#pragma mark Object Lifecycle

- (id)init {

    return [super initWithWindowNibName:@"PithosPreferencesController"];

}

- (void)windowDidLoad {

    [super windowDidLoad];

    NSWindow *window = [self window];

    [window setHidesOnDeactivate:NO];

    [window setExcludedFromWindowsMenu:YES];

//	// Select the first tab when the window is loaded for the first time.

//	[[window valueForKeyPath:@"toolbar"] setSelectedItemIdentifier:@"0"];

    [[[syncAccountsOutlineView tableColumns] objectAtIndex:1] setDataCell:[[[PithosPreferencesSyncOutlineViewCell alloc] init] autorelease]];

    syncAccountsMyAccountNode = [[PithosEmptyNode alloc] initWithDisplayName:@"<my account>" 

                                                                        icon:[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kUserIcon)]];

    [groupsDictionaryController setInitialKey:@"group"];

    [groupsDictionaryController setInitialValue:@"user"];

    [selectedGroupMembersDictionaryController setInitialKey:@"user"];

    [selectedGroupMembersDictionaryController setInitialValue:@""];

    [window setDelegate:self];

    self.selectedPithosAccount = [[accountsArrayController selectedObjects] objectAtIndex:0];

    [accountsArrayController addObserver:self forKeyPath:@"selection" options:NSKeyValueObservingOptionNew context:NULL];

    [[NSNotificationCenter defaultCenter] addObserver:self 

                                             selector:@selector(selectedPithosAccountNodeChildrenUpdated:) 

                                                 name:@"SelectedPithosAccountNodeChildrenUpdated" 

                                               object:nil];

}

- (BOOL)windowShouldClose:(id)sender {

    return [(pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate] activated];

}

//- (void)windowWillClose:(NSNotification *)notification {

//}

//- (IBAction)toolbarItemSelected:(id)sender {

//}

#pragma mark -

#pragma Observers

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {

    if ([object isEqualTo:accountsArrayController] && 

        [keyPath isEqualToString:@"selection"] && 

        [[accountsArrayController selectedObjects] count]) {

        self.selectedPithosAccount = [[accountsArrayController selectedObjects] objectAtIndex:0];

    }

}

- (void)selectedPithosAccountNodeChildrenUpdated:(NSNotification *)notification {

    [syncAccountsOutlineView reloadData];

    [syncAccountsOutlineView expandItem:nil expandChildren:YES];

}

#pragma mark -

#pragma Update

- (void)updateAccounts {

    pithos_macosAppDelegate *delegate = (pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate];

    self.accountRemoveEnable = (delegate.activated && ([delegate.pithosAccounts count] > 1));

}

- (void)updateLogin {

    self.loginEnable = ([selectedPithosAccount urlIsValid:serverURL] && (!manual || ([authUser length] && [authToken length])));

    self.loginCancelEnable = (![selectedPithosAccount.serverURL isEqualToString:serverURL] || 

                              (selectedPithosAccount.authUser && ![selectedPithosAccount.authUser isEqualToString:authUser]) || 

                              (selectedPithosAccount.authToken && ![selectedPithosAccount.authToken isEqualToString:authToken]));

}

- (void)updateSync {

    BOOL isDirectory;

    self.syncApplyEnable = (selectedPithosAccount.active && 

                            ((selectedPithosAccount.syncActive != syncActive) || 

                             (![selectedPithosAccount.syncDirectoryPath isEqualToString:syncDirectoryPath] && 

                              (![[NSFileManager defaultManager] fileExistsAtPath:syncDirectoryPath isDirectory:&isDirectory] || 

                               isDirectory)) ||

                             ![selectedPithosAccount.syncAccountsDictionary isEqualToDictionary:syncAccountsDictionary]));

    self.syncCancelEnable = (selectedPithosAccount.active && 

                             ((selectedPithosAccount.syncActive != syncActive) || 

                              ![selectedPithosAccount.syncDirectoryPath isEqualToString:syncDirectoryPath] ||

                              ![selectedPithosAccount.syncAccountsDictionary isEqualToDictionary:syncAccountsDictionary]));

}

#pragma mark -

#pragma Properties

- (void)setSelectedPithosAccount:(PithosAccount *)aSelectedPithosAccount {

    if (aSelectedPithosAccount && ![aSelectedPithosAccount isEqualTo:selectedPithosAccount]) {

        selectedPithosAccount.accountNode.childrenUpdatedNotificationName = nil;

        selectedPithosAccount.sharingAccountsNode.childrenUpdatedNotificationName = nil;

        [selectedPithosAccount release];

        selectedPithosAccount = [aSelectedPithosAccount retain];

        selectedPithosAccount.accountNode.childrenUpdatedNotificationName = @"SelectedPithosAccountNodeChildrenUpdated";

        selectedPithosAccount.sharingAccountsNode.childrenUpdatedNotificationName = @"SelectedPithosAccountNodeChildrenUpdated";

        [self updateAccounts];

        [self loginCancel:self];

        [self syncCancel:self];

        [self groupsRevert:self];

    }

}

#pragma Login Properties

- (void)setServerURL:(NSString *)aServerURL {

    [serverURL release];

    serverURL = [aServerURL copy];

    [self updateLogin];

}

- (void)setAuthUser:(NSString *)anAuthUser {

    [authUser release];

    authUser = [anAuthUser copy];

    [self updateLogin];

}

- (void)setAuthToken:(NSString *)anAuthToken {

    [authToken release];

    authToken = [anAuthToken copy];

    [self updateLogin];

}

- (void)setManual:(BOOL)aManual {

    manual = aManual;

    [self updateLogin];

    if (!manual) {

        self.authUser = selectedPithosAccount.authUser;

        self.authToken = selectedPithosAccount.authToken;

    }

}

#pragma Sync Properties

- (void)setSyncActive:(BOOL)aSyncActive {

    syncActive = aSyncActive;

    [self updateSync];

}

- (void)setSyncDirectoryPath:(NSString *)aSyncDirectoryPath {

    [syncDirectoryPath release];

    syncDirectoryPath = [aSyncDirectoryPath copy];

    [self updateSync];

}

- (void)setSyncAccountsDictionary:(NSMutableDictionary *)aSyncAccountsDictionary {

    [syncAccountsDictionary release];

    syncAccountsDictionary = [[NSMutableDictionary alloc] initWithCapacity:[aSyncAccountsDictionary count]];

    for (NSString *accountName in aSyncAccountsDictionary) {

        NSDictionary *aSyncContainersDictionary = [aSyncAccountsDictionary objectForKey:accountName];

        NSMutableDictionary *syncContainersDictionary = [NSMutableDictionary dictionary];

        for (NSString *containerName in aSyncContainersDictionary) {

            [syncContainersDictionary setObject:[NSMutableArray arrayWithArray:[aSyncContainersDictionary objectForKey:containerName]] 

                                         forKey:containerName];

        }

        if ([syncContainersDictionary count])

            [syncAccountsDictionary setObject:syncContainersDictionary forKey:accountName];

    }

    [self updateSync];

}

#pragma mark -

#pragma Actions

- (IBAction)addAccount:(id)sender {

    [accountsArrayController addObject:[PithosAccount pithosAccount]];

    [self updateAccounts];

    pithos_macosAppDelegate *delegate = (pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate];

    [delegate.pithosAccountsDictionary setObject:selectedPithosAccount forKey:selectedPithosAccount.name];

    [delegate savePithosAccounts:self];

}

- (IBAction)removeAccount:(id)sender {

    [self updateAccounts];

    if (!accountRemoveEnable)

        return;

    PithosAccount *removedPithosAccount = [selectedPithosAccount retain];

    pithos_macosAppDelegate *delegate = (pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate];

    if ([delegate.currentPithosAccount isEqualTo:removedPithosAccount] && [delegate.pithosBrowserController operationsPending]) {

        NSAlert *alert = [[[NSAlert alloc] init] autorelease];

        [alert setMessageText:@"Operations Pending"];

        [alert setInformativeText:@"There are pending operations in the browser, do you want to remove the account and cancel them?"];

        [alert addButtonWithTitle:@"OK"];

        [alert addButtonWithTitle:@"Cancel"];

        NSInteger choice = [alert runModal];

        if (choice == NSAlertSecondButtonReturn) {

            [removedPithosAccount release];

            return;

        }

    }

    [accountsArrayController removeObject:selectedPithosAccount];

    [delegate.pithosAccountsDictionary removeObjectForKey:removedPithosAccount.name];

    [delegate removedPithosAccount:removedPithosAccount];

    [delegate savePithosAccounts:self];

    [removedPithosAccount release];

    [self updateAccounts];

}

#pragma Login Actions

- (IBAction)login:(id)sender {

    if (!manual) {

        [selectedPithosAccount loginWithServerURL:serverURL];

    } else {

        [selectedPithosAccount authenticateWithServerURL:serverURL authUser:authUser authToken:authToken];

        self.manual = NO;

        pithos_macosAppDelegate *delegate = (pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate];

        [delegate savePithosAccounts:self];

        if (!delegate.activated) {

            delegate.activated = YES;

            [delegate showPithosBrowser:self];

        }

        if ([selectedPithosAccount isEqualTo:delegate.currentPithosAccount])

            delegate.pithosBrowserController.pithos = selectedPithosAccount.pithos;

    }

}

- (IBAction)loginCancel:(id)server {

    self.serverURL = selectedPithosAccount.serverURL;

    self.authUser = selectedPithosAccount.authUser;

    self.authToken = selectedPithosAccount.authToken;

}

#pragma Sync Actions

- (IBAction)syncApply:(id)sender {

    [selectedPithosAccount updateSyncWithSyncActive:syncActive 

                                  syncDirectoryPath:syncDirectoryPath 

                           syncAccountsDictionary:syncAccountsDictionary];

    [self updateSync];

    pithos_macosAppDelegate *delegate = (pithos_macosAppDelegate *)[[NSApplication sharedApplication] delegate];

    [delegate savePithosAccounts:self];

    [delegate sync];

}

- (IBAction)syncCancel:(id)sender {

    self.syncActive = selectedPithosAccount.syncActive;

    self.syncDirectoryPath = selectedPithosAccount.syncDirectoryPath;

    self.syncAccountsDictionary = selectedPithosAccount.syncAccountsDictionary;

    self.syncAccountsRootFilesNodes = [NSMutableDictionary dictionary];

    [self selectedPithosAccountNodeChildrenUpdated:nil];

}

- (IBAction)syncRefresh:(id)sender {

    selectedPithosAccount.accountNode.forcedRefresh = YES;

    [selectedPithosAccount.accountNode invalidateChildrenRecursive];

    selectedPithosAccount.sharingAccountsNode.forcedRefresh = YES;

    [selectedPithosAccount.sharingAccountsNode invalidateChildrenRecursive];

    if (selectedPithosAccount.accountNode.children && selectedPithosAccount.sharingAccountsNode.children) {

    }

}

#pragma mark Groups Actions

- (IBAction)groupsApply:(id)sender {

    [[self window] makeFirstResponder:nil];

    if (selectedPithosAccount.active)

        [selectedPithosAccount.accountNode applyInfo];

}

- (IBAction)groupsRevert:(id)sender {

    if (selectedPithosAccount.active && selectedPithosAccount.accountNode)

        [selectedPithosAccount.accountNode refreshInfo];

}

#pragma mark -

#pragma mark NSOutlineViewDataSource

// <my account> [PithosEmptyNode]

// - <container>+ [PithosContainerNode]

// -- <subdir>+ [PithosSubdirNode]

// -- <root files> [PithosEmptyNode]

// <sharing account>+ [PithosSharingAccountNode]

// - <container>+ [PithosContainerNode]

// -- <subdir>+ [PithosSubdirNode]

// -- <root files> [PithosEmptyNode]

- (NSInteger)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {

    if (!selectedPithosAccount.active)

        return 0;

    if (outlineView == syncAccountsOutlineView) {

        if (item == nil) {

            // root: <my account> + #<sharing account>

            if (selectedPithosAccount.sharingAccountsNode.children)

                return (selectedPithosAccount.sharingAccountsNode.children.count + 1);

            else

                return 1;

        } else if (item == syncAccountsMyAccountNode) {

            // root/<my account>: #<container>

            if (selectedPithosAccount.accountNode.children)

                return selectedPithosAccount.accountNode.children.count;

        } else if ([item class] == [PithosAccountNode class]) {

            // root/<sharing account>: #<container>

            PithosAccountNode *accountNode = (PithosAccountNode *)item;

            if (accountNode.children)

                return accountNode.children.count;

        } else if ([item class] == [PithosContainerNode class]) {

            // root/{<my account>, <sharing account>}/<container>: #<subdir> + <root files>

            PithosContainerNode *containerNode = (PithosContainerNode *)item;

            if (containerNode.children) {

                // We add 1 for the root files node

                NSInteger subdirCount = 1;

                for (PithosNode *node in containerNode.children) {

                    if ([node class] == [PithosSubdirNode class])

                        subdirCount++;

                }

                return subdirCount;

            }

        }

    }

    return 0;

}

- (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index ofItem:(id)item {

    if (outlineView == syncAccountsOutlineView) {

        if (item == nil) {

            // root: [ <my account>, <sharing account>+ ]

            if (index == 0)

                return syncAccountsMyAccountNode;

            else

                return [selectedPithosAccount.sharingAccountsNode.children objectAtIndex:(index - 1)];

        } else if (item == syncAccountsMyAccountNode) {

            // root/<my account>: [ <container>+ ]

            return [selectedPithosAccount.accountNode.children objectAtIndex:index];

        } else if ([item class] == [PithosAccountNode class]) {

            // root/<sharing account>: [ <container>+ ]

            return [((PithosAccountNode *)item).children objectAtIndex:index];

        } else if ([item class] == [PithosContainerNode class]) {

            // root/{<my account>, <sharing account>}/<container>: [ <subdir>+, <root files> ]

            PithosContainerNode *containerNode = (PithosContainerNode *)item;

            NSInteger currentSubdirIndex = -1;

            for (PithosNode *node in containerNode.children) {

                if ([node class] == [PithosSubdirNode class]) {

                    currentSubdirIndex++;

                    if (currentSubdirIndex == index)

                        return node;

                }

            }

            if (++currentSubdirIndex == index) {

                NSString *accountName = containerNode.sharingAccount;

                if (!accountName)

                    accountName = @"";

                PithosEmptyNode *rootFilesNode = [[syncAccountsRootFilesNodes objectForKey:accountName] 

                                                  objectForKey:containerNode.displayName];

                if (!rootFilesNode) {

                    if (![syncAccountsRootFilesNodes objectForKey:accountName])

                        [syncAccountsRootFilesNodes setObject:[NSMutableDictionary dictionary] forKey:accountName];

                    rootFilesNode = [[[PithosEmptyNode alloc] initWithDisplayName:@"<root files>" 

                                                                             icon:[[NSWorkspace sharedWorkspace] iconForFileType:@""]] 

                                     autorelease];

                    rootFilesNode.parent = containerNode;

                    [[syncAccountsRootFilesNodes objectForKey:accountName] setObject:rootFilesNode forKey:containerNode.displayName];

                }

                return rootFilesNode;

            }

        }

    }

    return nil;

}

- (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item {

    if (outlineView == syncAccountsOutlineView) {

        if ((item == syncAccountsMyAccountNode) || 

            ([item class] == [PithosAccountNode class]) || 

            ([item class] == [PithosContainerNode class]))

            return YES;

    }

    return NO;

}

- (id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item {

    if (outlineView == syncAccountsOutlineView) {

        if ([[tableColumn identifier] isEqualToString:@"sync"]) {

            if (item == syncAccountsMyAccountNode) {

                // root/<my account>

                // My account is 

                // off if not in dictionary

                // mixed if in dictionary with exclusions

                // on if in dictionary without exclusions

                NSMutableDictionary *syncContainersDictionary = [syncAccountsDictionary objectForKey:@""];

                if (syncContainersDictionary) {

                    for (PithosContainerNode *node in selectedPithosAccount.accountNode.children) {

                        NSMutableArray *containerExcludedDirectories = [syncContainersDictionary objectForKey:node.displayName];

                        if (!containerExcludedDirectories || [containerExcludedDirectories count])

                            return [NSNumber numberWithUnsignedInteger:NSMixedState];

                    }

                    return [NSNumber numberWithUnsignedInteger:NSOnState];

                }

                return [NSNumber numberWithUnsignedInteger:NSOffState];

            } else if ([item class] == [PithosAccountNode class]) {

                // root/<sharing account>

                // A sharing account is 

                // off if not in dictionary

                // mixed if in dictionary with exclusions

                // on if in dictionary without exclusions

                PithosAccountNode *accountNode = (PithosAccountNode *)item;

                NSMutableDictionary *syncContainersDictionary = [syncAccountsDictionary objectForKey:accountNode.displayName];

                if (syncContainersDictionary) {

                    for (PithosContainerNode *node in accountNode.children) {

                        NSMutableArray *containerExcludedDirectories = [syncContainersDictionary objectForKey:node.displayName];

                        if (!containerExcludedDirectories || [containerExcludedDirectories count])

                            return [NSNumber numberWithUnsignedInteger:NSMixedState];

                    }

                    return [NSNumber numberWithUnsignedInteger:NSOnState];

                }

                return [NSNumber numberWithUnsignedInteger:NSOffState];

            } else if ([item class] == [PithosContainerNode class]) {

                // root/{<my account>, <sharing account>}/<container>

                // A container is 

                // off if not in dictionary

                // mixed if in dictionary with exclusions

                // on if in dictionary without exclusions

                PithosContainerNode *node = (PithosContainerNode *)item;

                NSString *accountName = node.sharingAccount;

                if (!accountName)

                    accountName = @"";

                NSMutableArray *containerExcludedDirectories = [[syncAccountsDictionary objectForKey:accountName] 

                                                                objectForKey:node.displayName];

                if (containerExcludedDirectories) {

                    if ([containerExcludedDirectories count])

                        return [NSNumber numberWithUnsignedInteger:NSMixedState];

                    else

                        return [NSNumber numberWithUnsignedInteger:NSOnState];

                }

                return [NSNumber numberWithUnsignedInteger:NSOffState];

            } else if ([item class] == [PithosSubdirNode class]) {

                // root/{<my account>, <sharing account>}/<container>/<subdir>

                // Directory is off if parent container not in dictionary or if excluded

                // displayName should be localized and lowercased

                PithosSubdirNode *node = (PithosSubdirNode *)item;

                NSString *accountName = node.sharingAccount;

                if (!accountName)

                    accountName = @"";

                NSMutableArray *containerExcludedDirectories = [[syncAccountsDictionary objectForKey:accountName] 

                                                                objectForKey:node.parent.displayName];

                if (!containerExcludedDirectories || 

                    [containerExcludedDirectories 

                     containsObject:[[node.displayName lowercaseString] stringByReplacingOccurrencesOfString:@"/" withString:@":"]])

                    return [NSNumber numberWithUnsignedInteger:NSOffState];

                else

                    return [NSNumber numberWithUnsignedInteger:NSOnState];

            } else if ([item class] == [PithosEmptyNode class]) {

                // root/{<my account>, <sharing account>}/<container>/<root files>

                // Root files is off if parent container not in dictionary or if excluded

                PithosEmptyNode *node = (PithosEmptyNode *)item;

                NSString *accountName = node.parent.sharingAccount;

                if (!accountName)

                    accountName = @"";

                NSMutableArray *containerExcludedDirectories = [[syncAccountsDictionary objectForKey:accountName] 

                                                                objectForKey:node.parent.displayName];

                if (!containerExcludedDirectories || [containerExcludedDirectories containsObject:@""])

                    return [NSNumber numberWithUnsignedInteger:NSOffState];

                else

                    return [NSNumber numberWithUnsignedInteger:NSOnState];

            }

            return [NSNumber numberWithUnsignedInteger:NSOffState];

        } else if ([[tableColumn identifier] isEqualToString:@"path"]) {

            return (PithosNode *)item;

        }

    }

    return nil;

}

- (void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item {

    if (outlineView == syncAccountsOutlineView) {

        if ([[tableColumn identifier] isEqualToString:@"sync"]) {

            NSCellStateValue newState = [object unsignedIntegerValue];

            if (item == syncAccountsMyAccountNode) {

                // root/<my account>

                // If new state is

                // mixed/on include my account with no exclusions

                // off exclude my account

                if ((newState == NSOnState) || (newState == NSMixedState)) {

                    NSMutableDictionary *syncContainersDictionary = [NSMutableDictionary dictionary];

                    for (PithosContainerNode *node in selectedPithosAccount.accountNode.children) {

                        [syncContainersDictionary setObject:[NSMutableArray array] forKey:node.displayName];

                    }

                    [syncAccountsDictionary setObject:syncContainersDictionary forKey:@""];

                } else {

                    [syncAccountsDictionary removeObjectForKey:@""];

                }

                [outlineView reloadItem:item reloadChildren:YES];

            } else if ([item class] == [PithosAccountNode class]) {

                // root/<sharing account>

                // If new state is

                // mixed/on include sharing account with no exclusions

                // off exclude sharing account

                PithosAccountNode *accountNode = (PithosAccountNode *)item;

                if ((newState == NSOnState) || (newState == NSMixedState)) {

                    NSMutableDictionary *syncContainersDictionary = [NSMutableDictionary dictionary];

                    for (PithosContainerNode *node in accountNode.children) {

                        [syncContainersDictionary setObject:[NSMutableArray array] forKey:node.displayName];

                    }

                    [syncAccountsDictionary setObject:syncContainersDictionary forKey:accountNode.displayName];

                } else {

                    [syncAccountsDictionary removeObjectForKey:accountNode.displayName];

                }

                [outlineView reloadItem:item reloadChildren:YES];

            } else if ([item class] == [PithosContainerNode class]) {

                // root/{<my account>, <sharing account>}/<container>

                // If new state is

                // mixed/on include container with no excluded directories

                // off exclude container

                PithosContainerNode *node = (PithosContainerNode *)item;

                NSString *accountName = node.sharingAccount;

                PithosNode *accountNode = node.parent;

                if (!accountName) {

                    accountName = @"";

                    accountNode = syncAccountsMyAccountNode;

                }

                NSMutableDictionary *syncContainersDictionary = [syncAccountsDictionary objectForKey:accountName];

                if ((newState == NSOnState) || (newState == NSMixedState)) {

                    if (!syncContainersDictionary) {

                        syncContainersDictionary = [NSMutableDictionary dictionary];

                        [syncAccountsDictionary setObject:syncContainersDictionary forKey:accountName];

                    }

                    [syncContainersDictionary setObject:[NSMutableArray array] forKey:node.displayName];

                } else if (syncContainersDictionary) {

                    [syncContainersDictionary removeObjectForKey:node.displayName];

                    if (![syncContainersDictionary count])

                        [syncAccountsDictionary removeObjectForKey:accountName];

                }

                [outlineView reloadItem:accountNode reloadChildren:YES];

            } else if ([item class] == [PithosSubdirNode class]) {

                // root/{<my account>, <sharing account>}/<container>/<subdir>

                // If new state is

                // mixed/on include directory (if container not included, include and exclude all others)

                // off exclude directory

                PithosSubdirNode *node = (PithosSubdirNode *)item;

                NSString *accountName = node.sharingAccount;

                PithosNode *accountNode = node.parent.parent;

                if (!accountName) {

                    accountName = @"";

                    accountNode = syncAccountsMyAccountNode;

                }

                NSMutableDictionary *syncContainersDictionary = [syncAccountsDictionary objectForKey:accountName];

                NSMutableArray *containerExcludedDirectories = [syncContainersDictionary objectForKey:node.parent.displayName];

                NSString *directoryName = [[node.displayName lowercaseString] stringByReplacingOccurrencesOfString:@"/" withString:@":"];

                if ((newState == NSOnState) || (newState == NSMixedState)) {

                    if (containerExcludedDirectories) {

                        [containerExcludedDirectories removeObject:directoryName];

                    } else {

                        if (!syncContainersDictionary) {

                            syncContainersDictionary = [NSMutableDictionary dictionary];

                            [syncAccountsDictionary setObject:syncContainersDictionary forKey:accountName];

                        }

                        NSMutableArray *newContainerExcludeDirectories = [NSMutableArray arrayWithObject:@""];

                        for (PithosNode *siblingNode in node.parent.children) {

                            if ([siblingNode class] == [PithosSubdirNode class]) {

                                NSString *siblingDirectoryName = [[siblingNode.displayName lowercaseString] 

                                                                  stringByReplacingOccurrencesOfString:@"/" withString:@":"];

                                if (![siblingDirectoryName isEqualToString:directoryName] && 

                                    ![newContainerExcludeDirectories containsObject:siblingDirectoryName])

                                    [newContainerExcludeDirectories addObject:siblingDirectoryName];

                            }

                        }

                        [syncContainersDictionary setObject:newContainerExcludeDirectories forKey:node.parent.displayName];

                    }

                } else if (syncContainersDictionary && 

                           containerExcludedDirectories && 

                           ![containerExcludedDirectories containsObject:directoryName]) {

                    [containerExcludedDirectories addObject:directoryName];

                }

                [outlineView reloadItem:accountNode reloadChildren:YES];

            } else if ([item class] == [PithosEmptyNode class]) {

                // If new state is

                // mixed/on include root files (if container not included, include and exclude all others)

                // off exclude root files

                PithosEmptyNode *node = (PithosEmptyNode *)item;

                NSString *accountName = node.parent.sharingAccount;

                PithosNode *accountNode = node.parent.parent;

                if (!accountName) {

                    accountName = @"";

                    accountNode = syncAccountsMyAccountNode;

                }

                NSMutableDictionary *syncContainersDictionary = [syncAccountsDictionary objectForKey:accountName];

                NSMutableArray *containerExcludedDirectories = [syncContainersDictionary objectForKey:node.parent.displayName];

                if ((newState == NSOnState) || (newState == NSMixedState)) {

                    if (containerExcludedDirectories) {

                        [containerExcludedDirectories removeObject:@""];

                    } else {

                        if (!syncContainersDictionary) {

                            syncContainersDictionary = [NSMutableDictionary dictionary];

                            [syncAccountsDictionary setObject:syncContainersDictionary forKey:accountName];

                        }

                        NSMutableArray *newContainerExcludeDirectories = [NSMutableArray array];

                        for (PithosNode *siblingNode in node.parent.children) {

                            if ([siblingNode class] == [PithosSubdirNode class]) {

                                NSString *siblingDirectoryName = [[siblingNode.displayName lowercaseString] 

                                                                  stringByReplacingOccurrencesOfString:@"/" withString:@":"];

                                if (![newContainerExcludeDirectories containsObject:siblingDirectoryName])

                                    [newContainerExcludeDirectories addObject:siblingDirectoryName];

                            }

                        }

                        [syncContainersDictionary setObject:newContainerExcludeDirectories forKey:node.parent.displayName];

                    }

                } else if (syncContainersDictionary && 

                           containerExcludedDirectories && 

                           ![containerExcludedDirectories containsObject:@""]) {

                    [containerExcludedDirectories addObject:@""];

                }

                [outlineView reloadItem:accountNode reloadChildren:YES];

            }

            [self updateSync];

        }

    }

}

@end